Electricity
Current Electricity
MCQ (Single Correct Answer)
Moving Charges and Magnetism
MCQ (Single Correct Answer)
Magnetism and Matter
MCQ (Single Correct Answer)
Electromagnetic Induction
MCQ (Single Correct Answer)
Electromagnetic Waves
MCQ (Single Correct Answer)
Modern Physics
Semiconductor Electronics
MCQ (Single Correct Answer)
1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

In half wave rectification, if the input frequency is 60 Hz, then the output frequency would be

A
Zero
B
30 Hz
C
60 Hz
D
120 Hz
2
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

NEET 2022 Phase 1 Physics - Semiconductor Electronics Question 21 English

The truth table for the given logic circuit is

A
NEET 2022 Phase 1 Physics - Semiconductor Electronics Question 21 English Option 1
B
NEET 2022 Phase 1 Physics - Semiconductor Electronics Question 21 English Option 2
C
NEET 2022 Phase 1 Physics - Semiconductor Electronics Question 21 English Option 3
D
NEET 2022 Phase 1 Physics - Semiconductor Electronics Question 21 English Option 4
3
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Consider the following statements (A) and (B) and identify the correct answer.

(A) A Zener diode is connected in reverse bias, when used as a voltage regulator.

(B) The potential barrier of p-n junction lies between 0.1 V to 0.3 V.
A
(A) is incorrect but (B) is correct.
B
(A) and (B) both are correct.
C
(A) and (B) both are incorrect.
D
(A) is correct and (B) is incorrect.
4
NEET 2021
MCQ (Single Correct Answer)
+4
-1
The electron concentration in an n-type semiconductor is the same as hole concentration in a p-type semiconductor. An external field (electric) is applied across each of them. Compare the currents in them.
A
No current will flow in p-type, current will only flow in n-type
B
Current in n-type = current in p-type
C
current in p-type > current in n-type
D
current in n-type > current in p-type
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